com.unity.services.samples.game-lobby/Assets/Scripts/GameLobby/NGO/SymbolObject.cs

using System;
using System.Collections;
using Unity.Netcode;
using UnityEngine;

namespace LobbyRelaySample.ngo
{
    /// <summary>
    /// This holds the logic and data for an individual symbolIndex, which can be "clicked" if the server detects the collision with a player who sends a click input.
    /// </summary>
    public class SymbolObject : NetworkBehaviour
    {
        [SerializeField]
        SymbolData m_symbolData;
        [SerializeField]
        SpriteRenderer m_renderer;
        [SerializeField]
        private Animator m_animator;

        public bool Clicked { get; private set; }
        public int SymbolIndex { get; private set; }

        public void SetSymbolIndex_Server(int symbolIndex)
        {
            SetSymbolSprite(symbolIndex);
            SetSymbolIndex_ClientRpc(symbolIndex);
        }

        [ClientRpc]
        public void SetSymbolIndex_ClientRpc(int symbolIndex)
        {
            SetSymbolSprite(symbolIndex);
        }

        void SetSymbolSprite(int symbolIndex)
        {
            SymbolIndex = symbolIndex;
            m_renderer.sprite = m_symbolData.GetSymbolForIndex(SymbolIndex);
        }

        public void SetParentAndPosition_Server(NetworkObject parentObject, Vector3 newPosition)
        {
            NetworkObject.TrySetParent(parentObject, false);
            SetPosition_ClientRpc(newPosition);
        }

        [ClientRpc]
        void SetPosition_ClientRpc(Vector3 newPosition)
        {
            transform.localPosition = newPosition;
        }

        [ServerRpc]
        public void ClickedSequence_ServerRpc(ulong clickerPlayerId)
        {
            Clicked = true;
            Clicked_ClientRpc(clickerPlayerId);
            StartCoroutine(HideSymbolAnimDelay());
        }

        [ClientRpc]
        public void Clicked_ClientRpc(ulong clickerPlayerId)
        {
            if (this.NetworkManager.LocalClientId == clickerPlayerId)
                m_animator.SetTrigger("iClicked");
            else
            {
                m_animator.SetTrigger("theyClicked");
            }
        }

        [ServerRpc]
        public void HideSymbol_ServerRpc()
        {
            // Actually destroying the symbolIndex objects can cause garbage collection and other delays that might lead to desyncs.
            // Disabling the networked object can also cause issues, so instead, just move the object, and it will be cleaned up once the NetworkManager is destroyed.
            // (If we used object pooling, this is where we would instead return it to the pool.)
            //The animation calls RemoveSymbol(only for server
            this.transform.localPosition += Vector3.forward * 500;
        }

        //It's easier to have the post-animation symbolIndex "deletion" happen entirely in server world rather than depend on client-side animation triggers.
        IEnumerator HideSymbolAnimDelay()
        {
            yield return new WaitForSeconds(0.3f);
            HideSymbol_ServerRpc();
        }
    }
}